First, a methodological error and a typographic error were found in the accuracy assessment, which affects Sections 3.1 and 4.1 and Tables 2–5 of this paper. During expert interpretation of Shackleton Ice Shelf, one expert erroneously classified pixels from another ice shelf. To solve this, we have removed this set of expert interpretations for the Shackleton Ice Shelf from the accuracy assessment dataset, and the classified data for this ice shelf is therefore now compared against a set of three expert interpretations instead of four. Additionally, the accuracy score reported for slush on Amery Ice Shelf for Expert 4 was a typographic error and has been corrected. This corrigendum presents revised Tables 2–5, with changes to correct for both the expert interpretation and typographic errors presented in bold text. We advise readers to refer to the numbers in these tables when considering data and text related to accuracy scores.